From San Francisco, at a meeting of the American Association for the Advancement of Science

The flow of water into and out of massive, ice-covered lakes in Antarctica may influence the speed at which overlying glaciers move toward the sea, a new study suggests.

Some of the speediest glaciers in the West Antarctic Ice Sheet are hundreds of kilometers long, 50 km wide, and up to 2 km thick, says Robert Bindschadler, a glaciologist at NASA's Goddard Space Flight Center in Greenbelt, Md. Many of t...